Improvement in window-sash fastenings



UNTTED STATES PATENT Orifice.

ANTHONY M. SMITH, OF JAMAICA, NEW YORK, ASSIGNO'R TO GILBERT SAYRES, OFSAME PLACE.

IMPROVEMENTIN WINDOW-SASH FASTENINGS.

Specification forming part of Letters Patent No. 37,602, dated February3, 1863.

To all whom it may concern:

Beit known that I, ANTHONY M. SMITH, of Jamaica, in thecounty of Queensand State of New York, have invented a new and Improved WindoW-SashFastening; and I do hereby declare that the following is a full, clear,and exact description of the same, reterence being had to theaccompanying drawings, making a part of this specification, in which-Figure 1 is a plan or top view of my invention in a locked state; Fig.2, a transverse section of the same, taken in the line w x, Fig. 1; Fig.3, a plan or top view ot the same in an unlocked state.

Similar letters of reference indicate corresponding parts in the severaliigures.

This invention relates to an improved window-sash fastening of thatclass which are applied to the center of the lower cross rail of theupper sash, and to the center of the upper cross-rail of the lowersash,and which are designed to lock or secure the sashes in a closedstate.

The object of the invention is to obtain a fastening of the kindspecified, which cannot be operated upon and unlocked from the outerside of the window, and which at the same time will draw the two middlerails of the sashes closely together.

To this end the invention consists in the employment or use of a jointedswivel-hasp attached to one ot' the sashes ot' a window, and a hook orcatch and an eccentric applied to the other sash, all being arranged insuch a manner that the hasp may be fitted over the hook or catch and thelatter turned so as to lock the hasp and secure the sashes in a closedstate, while the eccentric at the same time, or as the hook or catch isturned, is made to draw the adjoining rails of the two sashes incontact, completely closing the space between the rails, so as toprevent the passage of air or moisture between them, the hasp being sosecured by the hook or catch that it cannot be turned or moved from theouter side of the window.

To enable those skilled in the art to fully understand and constructm yinvention, I-will proceed to describe it.

A represents a hasp, which may be constructed of brass or other suitablemetal and provided at its front end with a circular opening, a, having alongitudinal slot, b, adjoining it, as shown clearly in Figs. 1 and 3.The hasp A at its back end is connected by a joint, c, to a shortspindle, d, thelower end of which has a shoulder, e, upon it, which isfitted in a socket, B, attached to the center of the lower rail, f, ofthe upper sash. The spindle d passes up through a circular opening inthe top ofthe socket B, andthe shoulder e causes the spindle to be rmlysecured in the socket, the former being allowed to turn freely in thelatter.

D represents a hook, which is formed on the upper end of a shortspindle, g, the lower end of which has a shoulder, h, upon it, thelatter being iitted in a socket, E, which is secured to the center ofthe upper cross-rail, t', of the lower sash. The spindle g is allowed toturn freely in the socket E, and there is formed upon said spindle, justbelow the hook D, an eccentric, j, the lower surface of which is flushwith the upper surface of the socket E, as shown clearly in Fig. 2.

The spindle d of the hasp A is in line with the spindleg of the hook D,and when the two sashes are closed, that is to say, the upper sash fullyraised-and thelower sash fully lowered-the hasp is turned down over thehook D, which is turned inward or toward the upper sash, as shown in redin Fig. 2. The hook D is then turned around so as to project over theiront edge ot' the hasp, as shown in tint in Figs. 1 and 2, and as saidhook is thus turned the eccentric j acts upon or against the front edgeof the opening a, and thereby draws the rails f i of the two sashes inclose contact, as shown in Figs. 1 and 2, forming a tight weather-proofjoint, the hasp while being thus locked forming a perfect iastening forthe two sashes and one which cannot be operated upon or unlocked fromthe outer side of the window by a metal plate or blade of a knife orinstrument thrust up between the rails f ia mode usually adopted byburglars for unlocking similar fastenings.

1n order to unlock the hasp A, the hook D is turned inward or toward theupper sash and in line with the slot b, as shown clearly in Fig. 3. Thehasp A may then be raised free from the hook D, and turned around so asto with the swivel-h00k D and eccentrioj, arranged and applied to thesashes7 to operate as herein set forth.

A. M. SMITH.

Vitnesses:

M. S. PARTMDGE, DANIEL ROBERTSON.

